US3453101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating nickeliferous ore
Assignee: Fuji Iron and Steel Co Ltd
•
Filing: 1964-10-16
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Granted: 1969-07-01
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Expires: 1984-10-16
Abstract
No abstract record available.
Inventors
- 👤 Yoshikazu Takahashi
- 👤 Koujiro Kojima
- 👤 Hisashi Kahata
- 👤 Iwao Iwasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:48
CPC Classifications
C; C22; C22B; C22B23/00; C22B23/02; C22B23/021; B; B03; B03B; B03B9/00; B03D; B03D1/00; B03D1/001; B03D1/002; C22B1/00; C22B1/02; C22B1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |